This blonde beauty is pushing 40, but you would never know that by looking at her!

Jenny McCarthy stopped by the Grove to tape a segment for Extra with Mario Lopez on Thursday, and she looks just as youthful and beautiful as she did in her Singled Out hosting days.

Maybe that's why she has agreed to pose for the July/August issue of Playboy? The former cover girl was named Playmate of the Year in 1993, and has been outspoken about her desire to pose nude for the men's mag one more time before she's too old.

No matter how old you get, Miss McCarthy, you'll always be a knock out!